| PartNumber | AT90LS4433-4AI | AT90LS4433-4AC | AT90LS4433-4PI |
| Description | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | N | N | N |
| Mounting Style | SMD/SMT | SMD/SMT | Through Hole |
| Package / Case | TQFP-32 | TQFP-32 | PDIP-28 |
| Series | 90LS | 90LS | 90LS |
| Core | AVR | AVR | AVR |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz |
| Program Memory Size | 2 kB | 2 kB | 2 kB |
| Data RAM Size | 128 B | 128 B | 128 B |
| ADC Resolution | 10 bit | 10 bit | 10 bit |
| Number of I/Os | 20 I/O | 20 I/O | 20 I/O |
| Operating Supply Voltage | 2.7 V to 6 V | 2.7 V to 6 V | 2.7 V to 6 V |
| Minimum Operating Temperature | - 40 C | 0 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 70 C | + 85 C |
| Height | 1.05 mm | 1.05 mm | 4.57 mm |
| Length | 7 mm | 7 mm | 34.8 mm |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | Flash |
| Width | 7 mm | 7 mm | 7.49 mm |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data ROM Type | EEPROM | EEPROM | EEPROM |
| Interface Type | SPI | SPI | SPI |
| Number of ADC Channels | 6 | 6 | 6 |
| Number of Timers/Counters | 2 Timer | 2 Timer | 2 Timer |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 250 | 250 | 50 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 6 V | 6 V | 6 V |
| Supply Voltage Min | 2.7 V | 2.7 V | 2.7 V |
| Unit Weight | 0.002568 oz | 0.002568 oz | 0.147798 oz |